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analysis of water channel function to decrease of brain edema caused by mild hypothermia with using RNAi technique

Research Project

Project/Area Number 18591714
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Anesthesiology/Resuscitation studies
Research InstitutionNagoya City University

Principal Investigator

FUJITA Yoshihito  Nagoya City University, 大学院・医学研究科上, 講師 (90238593)

Co-Investigator(Kenkyū-buntansha) ASAI Kiyofumi  名古屋市立大学, 大学院・医学研究科, 教授 (70212462)
SOBUE Kazuya  名古屋市立大学, 大学院・医学研究科, 教授 (90264738)
Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,100,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥600,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2007: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2006: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywords水チャンネル / 脳浮腫 / RNAi / アクアポリン / 脳低温 / ノックダウン / 脳低温療法
Research Abstract

今後の研究の基礎となるアクアポリン(AQP)Knockdown細胞株の確立を重点に行った。Knockdownが確認されているconstructに加えオリジナルのものを作成した。vectorには、invitrogen社製のBlock-IT Pol II miR RNAi expression vector、pcDNA 6.2-GW/miRを使用した。そのプラスミドを大腸菌にtransformationして、大量培養し、Quiagen社のキットを用いて、目的となるconstructを含むプラスミドを大量に、無菌的に精製した。RNAiの効果を確認するが効果が弱く、原因の追求のためGFPをvectorに挿入した。そのGFPつきのvectorの挿入で、視覚的におおざっぱにいって20%ぐらいのtranfection効率があることを確認した。ただRNAi効果をえる効率は、まだ10%程度にとどまった。transfection効率をあげるためレンチウイルスを使用したvectorの作製を進めると同時に、現在作成してあるGFPつきvectorを用い。実際の低温における脳浮腫効果の解明を始めている。また、同時に疾患の重傷度の指標として注目している乳酸値について、乳酸負荷でのアストロサイトにおける水チャンネルの発現の変化についても解析し、論文発表した。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (24 results)

All 2009 2008 2007 2006 Other

All Journal Article (17 results) (of which Peer Reviewed: 11 results) Presentation (7 results)

  • [Journal Article] Before-after study of a restricted fluid infusion strategy for management of donor hepatectomy for living donor liver transplantation2009

    • Author(s)
      Yoshihito Fujita, Akinori Takeuchi, Takeshi Sugiura, Tomonori Hattori, Nobuko Sasano, Yuichiro Mizuochi, Kazuya Sobue
    • Journal Title

      J. Anesth (in press)

    • NAID

      10025381639

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Lactic acid increases aquaporin 4 expression on the cell membrane of cultured rat astrocytes2008

    • Author(s)
      Morishima T, Aoyama M, Iida Y, Yamamoto N, Hirate H, Arima H, Fujita Y, Sasano H, Tsuda T, Katsuya H, Asai K, Sobue K.
    • Journal Title

      Neurosci Res. 61(1)

      Pages: 18-26

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Lactic acid increases aquaporin 4 expression on the cell membrane of cultured rat astrocytes.2008

    • Author(s)
      Morishima T, Fujita Y, Et al
    • Journal Title

      Neuroscience Research 61(1)

      Pages: 18-26

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ca2+-dependent activator protein for secretion 1 is critical for constitutive and regulated exocytosis but not for loading of transmitters into dense core vesicles2007

    • Author(s)
      Fujita Yoshihito, Xu A, Xie L, Arunachalam L, Chou TC, Jiang T, Chiew SK, Kourtesis J, Wang L, Gaisano HY, Sugita S.
    • Journal Title

      J Biol Chem 282(29)

      Pages: 21392-403

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Munc18-1 Is Critical for Plasma Membrane Localization of Syntaxinl but Not of SNAP-25 in PC12 Cells2007

    • Author(s)
      Arunachalam L, Han L, Tassew NG, He Y, Wang L, Xie L, Fujita Y, Kwan E, Davletov B, Monnier PP, Gaisano HY, Sugita S.
    • Journal Title

      Mol Biol Cell 19(2)

      Pages: 722-734

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Anesthetic management of a patient with mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes(MELAS)during laparotomy2007

    • Author(s)
      Nobuko Sasano, Yoshihito Fujita, MinHye So, Kazuya Sobue, Hiroshi Sasano and Hirotada Katsuya
    • Journal Title

      J. Anesth 21

      Pages: 72-5

    • NAID

      10018730319

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Ca2+-dependent activator protein for secretion 1 is critical for constitutive and regulated exocytosis but not for loading of transmitters into dense core vesicles.2007

    • Author(s)
      Yoahihito Fujita, そのた
    • Journal Title

      J Biol. Chem. 282

      Pages: 21392-403

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] .RalA and RalB function as the critical GTP sensors for GTP-dependent exocytosis2007

    • Author(s)
      Li G, Han L, Chou TC, Fujita Y, など
    • Journal Title

      J Neurosci. 27

      Pages: 190-202

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anesthetic management of a patient with mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes(MELAS)during laparotomy.2007

    • Author(s)
      Nobuko Sasano, Yoshihito Fujita, ほか
    • Journal Title

      J. Anesth 21

      Pages: 72-5

    • NAID

      10018730319

    • Related Report
      2007 Annual Research Report
  • [Journal Article] RalA and RalB function as the critical GTP sensors for GTP-dependent exocytosis.2007

    • Author(s)
      Li G, Han L, Chou TC, Fujita Y, ほか
    • Journal Title

      J Neurosci. Jan 3;27(1)

      Pages: 190-202

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Anesthetic management of a patient with mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) during laparotomy.2007

    • Author(s)
      Nobuko Sasano, Yoshihito Fujita, ほか
    • Journal Title

      J. Anesth 21

      Pages: 72-5

    • NAID

      10018730319

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Inadvertent intrathecal cannulation in an infant demonstrated by three-dimensional computed tomography : a rare complication of internal jugular vein catheterization2006

    • Author(s)
      Fujita Yoshihito, Sobue K, Hattori T, Takeuchi A, Tsuda T, Katsuya H.
    • Journal Title

      J. Anesthesia 20

      Pages: 122-5

    • NAID

      10019167614

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Intra-operative monitoring of vagal nerve activity with wire electrodes2006

    • Author(s)
      Ito H, Sobue K, So M, Hirate H, Sugiura T, Azami T, Fujita Y, Sasano H, Katsuya H.
    • Journal Title

      Acta Anaesthesiol Scand 50(10)

      Pages: 1304-5

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] 硬膜外麻酔併用全身麻酔時に必要な最小限セボフルラン濃度の検討2006

    • Author(s)
      藤田義人、森島徹朗、祖父江和哉、勝屋弘忠
    • Journal Title

      神経麻酔・集中治療プロシーディング 2006

      Pages: 29-30

    • Related Report
      2008 Final Research Report
  • [Journal Article] Inadvertent intrathecal cannulation in an infant demonstrated by three-dimensional computed tomography : a rare complication of internal jugular vein catheterization.2006

    • Author(s)
      Yoshihito Fujita, ほか
    • Journal Title

      J. Anesth 20

      Pages: 122-5

    • NAID

      10019167614

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 硬膜外麻酔併用全身麻酔時に必要な最小限セボフルラン濃度の検討2006

    • Author(s)
      藤田義人ほか
    • Journal Title

      神経麻酔・集中治療プロシーディング 10

      Pages: 29-30

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Failure of the Airway Scope to reach the larynx

    • Author(s)
      Nobuko Sasano, Hiroki Yamauchi, Yoshihito Fujita
    • Journal Title

      Can J Anesth2007 54(9)

      Pages: 775-775

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Presentation] Investigation of blood lactate as an indicator for severity of a child undergone cardiac surgery2008

    • Author(s)
      Yoshihito Fujita, Eisuke Kako, Yuichiro Mizuochi, Hironobu Iguchi, Kazuva Sobue
    • Organizer
      Annual Meeting of the American Society of Anesthesiologists
    • Place of Presentation
      (ASA)in Orland, Florida
    • Related Report
      2008 Final Research Report
  • [Presentation] Investigation of blood lactate level as indicator for severity assessment2008

    • Author(s)
      Yoshihito Fujita, Tae Kato, Hirotada Katsuya
    • Organizer
      The 6^<th> International Shock Congress in Cologne
    • Place of Presentation
      Germany
    • Related Report
      2008 Final Research Report
  • [Presentation] Investigation of blood laotate as an indicator for severity of a child undergone cardiac surgery2008

    • Author(s)
      Yoshihito Fujita
    • Organizer
      Annual Meeting of the American Society of Anesthesiologists (ASA)
    • Place of Presentation
      Orland, Florida USA
    • Related Report
      2008 Annual Research Report
  • [Presentation] Effect of mild hypothermia on the expression of aquaporin family in cultured rat astrocyte under hypoxic condition.2007

    • Author(s)
      Yoshihito Fujita, ほか
    • Organizer
      2007 5th international conference of aquaporin
    • Place of Presentation
      Nara, Japan
    • Year and Date
      2007-06-15
    • Related Report
      2007 Annual Research Report
  • [Presentation] Minimum concentration of sevoflurane for adequate sedation with combined General-epidural anesthesia2007

    • Author(s)
      Yoshihito Fujita, Hiroki Yamauchi, Masato Morita, Rina Kato
    • Organizer
      Annual Meeting of the American Society of Anesthesiologists
    • Place of Presentation
      (ASA)in San Francisco
    • Related Report
      2008 Final Research Report
  • [Presentation] Effect of mild hypothermia on the expression of aquaporin family in cultured rat astrocytes under hypoxic condition2007

    • Author(s)
      Fujita Yoshihito, Sobue Kazuva, Morishima Tetsuro, Asai Kiyofumi
    • Organizer
      the 5th International Conference of Aquaporin in Nara
    • Place of Presentation
      Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] Restricted-Volume Replacement Reduces Blood Loss during Donor Hepatectomy for Liver Transplantation2006

    • Author(s)
      Fujita Yoshihito, Katsuya Hirotada
    • Organizer
      2006 Annual Meeting of the American Society of Anesthesiologists
    • Place of Presentation
      (ASA)in Chicago
    • Related Report
      2008 Final Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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